RUST FUNGI (UREDINALES) OF NORTHWEST ARGENTINA

26 Pages·2002·15.4 MB·English

by  José R Hernández

NORTHWEST
RUST FUNGI OF ARGENTINA
(UREDINALES)
Hennen
Hernandez
Jose Joe F
R.
and
Systematic Botany Mycology Laboratory Botanical Research of Texas
Institute
USDA/AR5, Rm. BO 509 Pecan
304, lA Street
I
MD
Beltsville, 20705-2350, U.S.A. Fort Worth, TX 76 02-4060, U.S.A
1
En el presente trabajo se presentan los resultados de la prospeccion de royas (Uredinales) realizada
como Como
pertenecientes a la region conocida Noroeste Argentine. resultado de este trabajo se
elaboraron 635 colecciones correspondientes a 51 familias de hospedantes (257 especies). Ochenta
y
cuatro de estas colecciones son nuevos hospedantes para Argentina, de las cuales 50 son nuevas citas
como
hospedantes para royas. Se identificaron 30 generos y 182 especies de royas, de las cuales 61 son
nuevos registros para el pals y 10 nuevas especies. Las colecciones fueron depositadas en Fundacion
Miguel Lillo (LID y U.S. National Fungus Collection (BPl).
number
The fungi of Argentina have been studied by a of mycologists, most
notably Carlos Luigi Spegazzim (1858-1926) whose taxa were compiled into a
comprehensive account by Farr Spegazzini's collections of rust fungi
(1973).
made
(Uredmales) as well as collections by later mycologists were organized
and studied by Lindquist (1982). Lindquist s studies resulted in numerous pub-
on culminating "Royas de Republica Argentina
lications rust fungi, in his la
y
Zonas Although Argentina
Limitrofes" (Lindquist 1982). the fungi of are rela-
tively well known, the rust fungi of Northwest Argentina are less well studied
because few mycologists collected rusts in that region.
In this paper we present a study of rust fungi collected on wild and culti-
Tucuman
and
vated plants in the provinces of Catamarca, Salta in North-
Jujuy,
west Argentina. This subtropical region characterized by climatic and bio-
is
logical diversity and consists of a plain in the east and the Cordillera de los
Andes in the west where valleys closely alternate with mountains. The grada-
and Northwest Argentina mosaic
tions in latitude altitude in result in a of
The
bioecosystems with vegetation types varying from desert to rain forest. di-
versity of flora reflected in the range of phytogeographical regions described
is
for this area by Cabrera (1994). For these reasons, Northwest Argentina an
is
and
interesting rich area for collecting rust fungi.
Lindquist (1982) documented 450 species representing 28 genera of rust
fungi from throughout Argentina of which 124 species were reported from
Northwest Argentina. Between 1993 and 1999 the authors collected and identi-
fied or re-examined 635 specimens of rust fungi representing 182 species in 30
genera. These rust specimens were collected on 257 host plant species from 51
new
plant families. Eighty-four of these host plants are host records Argen-
for
new
tina, and 50 of these are host records for rusts worldwide. Sixty-one rust
new
species are reported for the time from Argentina and 10 of these are
first
One
species. of those, Baeodromus ranunculi].R. Hern. Hennen, has been
&J.F.
described (Hernandez 2000) and the remainder will be described elsewhere.
The
rust species reported here are presented according host family This
to
is
most form
the useful of organization because of the high level of host specific-
ity of the rust fungi. Collections for each rust species are then listed alphabeti-
by by
cally host species followed the province, details of locality, date, collector(s)
and number, herbarium number and
collector's rust stage present. For the rust
stages symbols are used as follows: = spermogonial stage, = aecial stage, =
1 11
and The
uredinial stage, III = telial stage. abbreviation "An" refers to the pres-
ence of an anamorph stage for which we are uncertain whether function-
it is
X
an Symbols =
ally aecial or uredinial stage. representing spore types are
M
amphispores, = mesospores, and IV = basidiospores.
New
name
rust records are indicated in superscript following the species
new new
as follows: rust species (N), rust record for Argentina (A), Catamarca
Tucuman
and
Jujuy Salta Superscript notations following host
(C), (S), (T).
(J),
names new new
indicate: host plant genus for this rust worldwide (G), host plant
new
worldwide any Argen-
species for this rust host plant species for rust in
(S),
new
and which was
tina (A), host plant species for another rust previously
known
from Argentina
(AR).
Abbreviations and names
of authorities for plant host fungal follow
Brummit and Powell (1992) and Kirk and Ansell (1992) respectively Plant host
W3TR0P1C0S
names
were verified using the Missouri Botanical Garden.
at
May
Las l995J.R.Heniandez 24 Sep 1997,J.EHennen &J.R.Herndndez
Salas, 5
Ill];
95-015 (BPI 841079) [MMII]; San Javier,
Nov
Parque Sierras de San Javier, 23 Jul 1QQ4, ing area, 29 1997 J.R.Herndndez 97-
W
lR.Herndndez94-150iULWLM.lwm- Catamarca, 23 Sep
7 (BPI) of 1997,
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III];SanPedrodeColalao,2Aprlog4, j.EHenncn J.R.Herndndez 97-043 (BPI)
W
nUL
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94-07 side of 1997,
[III;
&
54703, BPI) J.F.Hennen J.R.Herndndez 97-035 (BPI
101.
841184) Salta: Dept. Santa Victoria, La
[II].
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1996
&
24
E of La Vina, Sep 1997, J.F.Hennen
lR.Herndndez 97-061 (BPI 841197) j.R.Herndndez 94-149iUL 54943, BPI)
[II]!
[11].
athunbergiacCooke^ on Hydrocotyk Catamarca: El Rodeo, 29
sp.;
Nov
Tucuman: San Parque J.R.Herndndez 97-121 (BPI)
usticia sp.; Javier, 1997, [II].
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Tucuman: Amberes,
5 1989,
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l.R.Herndndez (LIL 54705, BPI
km
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[11-111], 9,
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es sp.^
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Rodeo 29 Nov 1997 R Hernandez
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1969 Krapovickas
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et al.
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del
[II]
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168 (BPI 841075) Apr 1994
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^4 on k/ u nun, sp Salta Calayate, 8 Apr
1
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Nogalal, 29 Jun 1996 J.R.Herndndez 96-
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[l-lll].
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III
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[III].
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of
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(LIL 54739, BPI) Dept. Capital,
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May 1995 R Hei nandez 95-035 (BPI Nov
]
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1993, J.F.Hennen
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